7+3k=40

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Solution for 7+3k=40 equation: 



7+3k=40

We move all terms to the left:

7+3k-(40)=0

We add all the numbers together, and all the variables

3k-33=0

We move all terms containing k to the left, all other terms to the right

3k=33

k=33/3

k=11

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